Observed Signal · Nov 2, 2026 · Tactical Guide · Source: Toms Marketing Ideas · Impact: 2/5 · Sentiment: Neutral
Substack recommendations drive free newsletter growth
This article from marketingideas.com outlines how brands can leverage Substack's recommendation system to gain free traffic and subscribers. It highlights the author's personal success (20,444 new subscribers from Substack vs 415 from Google), cites examples like M.M.LaFleur (70% of new subscribers from recommendations), and provides tactical advice: import customer lists, engage in recommendation swaps, use analytics to find partners, and leverage sponsorship deals. The piece emphasizes that employee-written, behind-the-scenes content performs well, citing Fin, PostHog, a16z, and others. Substack is positioned as a cost-effective channel for organic growth, especially compared to traditional ads that are blocked by tech-savvy audiences.
The article provides tactical advice on using Substack for newsletter growth, which is relevant for content marketing and B2B audience development, but it is not industry-shifting news.
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Key Takeaways & Evidence Grounding
- Substack sent the author 20,444 new subscribers, while Google sent 415.
- M.M.LaFleur moved its newsletter from WordPress to Substack, with over 70% of new subscribers coming from recommendations.
- a16z has over 276,000 subscribers on Substack.
- Substack reports that writers who recommend others are 3x more likely to be recommended.
- Ramp and PostHog use Substack recommendation swaps to grow their audiences.
Connected Companies & Entities
8 Entities mapped“The article is about using Substack's recommendation system to grow a newsletter audience.”
“PostHog's newsletter recommends exactly 10 engineering newsletters, and all 10 recommend PostHog back.”
“a16z runs a Substack newsletter with over 276,000 subscribers, and partners announce new investments there.”
“Ramp's economist writes Ramp's Substack, and Ramp sponsors TBPN's newsletter which recommends Ramp's Substack.”
“Polymarket runs a Substack newsletter as part of the examples of companies doing this.”
“HubSpot's writers published 4 articles under the author's name based on short calls.”
“OpenAI's economists have a Substack newsletter as part of the examples.”
“Spotify has a Substack newsletter (spotifyselects.substack.com) as part of the examples.”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Branded Substacks Drive Measurable Sales
Brands are increasingly using Substack newsletters as a measurable marketing and commerce channel. The RealReal launched a Gossip Girl–style Substack, The RealGirl, and later tracked more than $334,000 in sales tied to newsletter links as views and subscribers rose sharply (views: 58,400 to 236,000; subscribers: 3,470 to 8,281). Fashion and beauty publishers on Substack have more than doubled since 2022, and major brands including American Eagle, Madewell, Nike and Shopify have active publications. M.M. LaFleur moved its publication The M Dash from WordPress to Substack, gaining 6,000 new subscribers via Substack discovery and totaling over 81,000 subscribers. Rare Beauty focuses on audience growth and community features (Notes, Chat) rather than direct sales, reporting a 281% increase in viewership and 40% subscriber growth. Brands report high open rates and are experimenting with measurement and partnerships to understand newsletter-driven commerce and retention.
Newsletter Hits 100,000 Subscribers
The author of the Marketing Ideas newsletter announces reaching 100,000 subscribers and outlines the long-term, systems-driven process behind writing and sustaining a high-performing Substack. Key practices include collecting marketing ideas in Obsidian over years, running multiple article notes in parallel, using human curation plus AI for research (but not AI for primary writing), paying a $150/month intern to surface campaigns, and commissioning 4–5 pixel-art designers (single images take 2–3 weeks). The newsletter has over 2,000 paid subscribers, began in August 2023 with a ~700-person waitlist, and the author emphasizes pragmatic, example-led playbooks and heavy iteration on subject lines and edits to drive engagement and conversions to paid subscriptions.
Hamish McKenzie on Substack's Newsletter-First Strategy
Hamish McKenzie, Substack co‑founder, appears on The Art of the Zag podcast to recount Substack’s founding, explain its paid‑newsletter business model, and discuss platform design, creator ownership and the challenges posed by generative AI. He traces his path through Tesla and Kik to co‑founding Substack with Chris Best and Jairaj Sethi, describes the core insight that customers (readers) — not advertisers — should pay writers, and explains that Substack publishers control payment (via Stripe), mailing lists and content export. McKenzie outlines why network effects plus direct subscriber relationships can support niche journalism and creator livelihoods, and addresses AI-era risks and possible verification signals for human authors. He also mentions his upcoming book, Super Skill, about storytelling in the AI age.
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